Finding the Third Proportional to 45,868.50 and 64,591.88

Step by Step Solution

1. Step 1: Write the proportion equation
   45,868.50 : 64,591.88 = 64,591.88 : x
2. Step 2: Convert to fraction form
   45,868.50/64,591.88 = 64,591.88/x
3. Step 3: Cross multiply
   45,868.50x = 64,591.88 × 64,591.88
4. Step 4: Simplify right side
   45,868.50x = 4,172,110,316.02
5. Step 5: Solve for x
   x = 4,172,110,316.02/45,868.50
6. Step 6: Final answer
   x = 90,958.07